蔗渣浆CEH漂白废水的毒性及毒性污染负荷的研究  

Study on the Toxicity and Toxicity Emission Load of Bagasse Pulp CEH Bleaching Effluents

作　　者：方战强[1] 李友明[2] 陈中豪[2] 

机构地区：[1]华南师范大学环境科学研究所,广东广州510631 [2]华南理工大学造纸与环境工程学院,广东广州510641

出　　处：《生物技术》2005年第1期68-70,共3页Biotechnology

基　　金：国家高技术研究发展计划项目 (2 0 0 2AA6470 1 0 ) ;广东省自然科学基金项目 (0 4 30 0 0 1 9)资助 ;广州市科技攻关计划项目 (2 0 0 4Z3 -E0 4 31 )资助

摘　　要：采用发光细菌法对蔗渣浆CEH三段漂白废水进行了毒性研究 ,其中C段废水的毒性最大 ,其EC50 为 2 8.83% ,属于强毒级别 ;E段、H段废水的EC50 分别为 6 8.92 %、2 6 7.9% ,分别属于毒、无毒级别 ;其中C段的毒性排放负荷约占总废水毒性排放负荷的 6 7.5 %左右 ;结果表明 ,漂白废水的毒性排放负荷较大 ,约为 4 2 3.92 (TU·m3 吨浆 ) ,相当于 4 2 .93(gHgCl2 吨浆 ) 。The toxicity of CEH bleaching effluents were studied with photobacteria in this paper.The toxicity of C stage was the strongest,its EC_(50) was 28.83%,belong to strongest toxicity level.The EC_(50) of E,H were separate 68.92%,267.9%,separate belong totoxicity,no toxicitylevel.The toxicity emission load of C stage was about 67.5% of the total toxicity emission load.The results showed thetoxicity of bleaching effluent was strong,it was about 423.92 (TU·m3/t pulp),was equivalent to 42.93(g HgCl_2/t pulp),so the treatment of bleaching effluent was not ignored.

关 键 词：发光细菌 毒性 漂白废水 毒性排放负荷 

分 类 号：X131.2[环境科学与工程—环境科学]